The Kol is my hands down choice for a first Cap. The 800 point level 3 main gun is it's main selling point.
Actually, I find that I prefer adaptive forcefield. When the Kol's shields get low, fire up adaptive forcefield, if it's level 6 use Finest Hour, use an accompanying Dunov to recharge it's shields, and have your Cielos and Hoshikos use their hull repair and shield regen buffs on it. With this set up it's effectively invincible. It can soak up the entire enemy fleet's fire and just keep shooting back. Run her right down the middle of the enemy formation so she can fire all her guns simultaneously at as many enemies as possible. While they're spending their firepower trying to destroy your Kol, the rest of your fleet is eating their fleet for breakfast.
Only weakness is that the Dunov is kind of a soft target as far as caps go. If they get wise to that, then use two Dunovs. One can shield recharge the one that's being focus fired on and also re task your support cruisers to buff it's shields and hull. The Dunov that's being focus fired will having staying power and it can use its abilities to buff up your Kol, or use EMP charge to knock out the other guy's anti matter.
Kol / Dunov and Kol / 2 Dunovs is very potent for the TEC.